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# $Id: shlib 14 2007-02-18 19:43:41Z sfsetse $
# vim:et:ft=sh:sts=2:sw=2
#
# Copyright 2008 Kate Ward. All Rights Reserved.
# Released under the LGPL (GNU Lesser General Public License).
# Author: kate.ward@forestent.com (Kate Ward)
#
# Library of shell functions.
# Convert a relative path into it's absolute equivalent.
#
# This function will automatically prepend the current working directory if the
# path is not already absolute. It then removes all parent references (../) to
# reconstruct the proper absolute path.
#
# Args:
# shlib_path_: string: relative path
# Outputs:
# string: absolute path
shlib_relToAbsPath()
{
shlib_path_=$1
# prepend current directory to relative paths
echo "${shlib_path_}" |grep '^/' >/dev/null 2>&1 \
|| shlib_path_="`pwd`/${shlib_path_}"
# clean up the path. if all seds supported true regular expressions, then
# this is what it would be:
shlib_old_=${shlib_path_}
while true; do
shlib_new_=`echo "${shlib_old_}" |sed 's/[^/]*\/\.\.\/*//g;s/\/\.\//\//'`
[ "${shlib_old_}" = "${shlib_new_}" ] && break
shlib_old_=${shlib_new_}
done
echo "${shlib_new_}"
unset shlib_path_ shlib_old_ shlib_new_
}
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